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发明名称
Pressure governed time valve
摘要
申请公布号
US2643644(A)
申请公布日期
1953.06.30
申请号
US19470788101
申请日期
1947.11.26
申请人
WAY WALTER C
发明人
WAY WALTER C.
分类号
F15B21/02
主分类号
F15B21/02
代理机构
代理人
主权项
地址
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